Needle dial for knitting machines



NOV. 8, 1932. H, SWlNGLE- HURST 1,887,340

NEEDLE vDIAL FOR KNITTING MACHINES Filed Feb. 17, 1932 XQQXOQXOOXOO m Xq/OXOOXQQXQOXCYLINDER Tj E.

y VENTOR HARRY NGLEHURST Patented Nov. 8, 1932 Hann- 'swinennnnns'rforORANGE.: .Inlaslrnn'nssieriveir"re'scorre:Y aWLLIAMsI- mconroRATED, 4or. NEW YORKJIL Y., A CORPORA'rro'lv'h orfMAs'sAcHUsEr'Tsf-= NnEDLnnmLro-ir KNITTING MACHIN-Es-J Y i Application mec "February 17, Y1932. seria-i No: 593,576. f

This invention relates'to knitting machines andv `more particularly; to Vthe needle dials Y of Y a v needle f dial `constructed .in accordancel therefor and; it is anobject-of this invention toprovide aneedle dial of improvedconstructionin which needle slots or grooves arearranged in groups of parallel grooves having finished parallel side Walls. It is also' anf object of this invention to provide aneedle dial of the type described in 'which the needle grooves are formed by walls inserted in s lots infthe dial. Itis also an object of this inven` tion to provide a needledial ofthe-type described which will be of 'a cons tructionvgiving a maximum service and permitting -of ready repain c `-`Intheldrawing: i v v j Fig. lis atop plan view showing a segment with this invention; .l l 1 Fig. 2 is a verticall section taken as on the line- -2f2 of Fig. l; and l Fig. 3 isa diagrammatic view showingV anY arrangement of-the needlesin the cylinder and dial for'use in connection with -a dial arranged as in Fig-1.`

The Vneedle arrangement-'shown in Fig. 3 is one used in connection with -2 X2 Swiss rib knitting and is showntoillustrateank arrangement Vof `dialneedles1l\l Vand cylinder needles N suitable for use with a needle dial arranged as shown in Fig. 1. It is to be understood that the dial may be arranged for Y other arrangements of needles.

.j level than the surface 5.

A dial constructed in accordance with this invention comprises a circular plate or disk l having the usual central bore (not shown) by which the plate is mounted on the usual dial shaft or post. Adjacent its edge the plate l is formed with an annular rib 3 which projects upwardly from the flat upper sur- Jrace 5 of the plate. The upper surface 5 ends intermediate the periphery and the center of the plate and is connected by a vertical surface 7 to an upper surface 9 at a lower At regular inter* vals around the plate l groups ofparallel slots of different lwidths 11 are cut in the surface 5 of the plate, these slots being formed parallel to the radius which is located substantially centrally of the group and extend- .cent groups.

' lthe. cams on the needle 1 while the-wall 14a is notsubjectedto such pressureand'may g Vfrom the surface outwardly' t0.. PlIltsv j adjacent' the rib' 3. Y In the slotsA lll' are ill.`

serted the walls v14a, 145,V l`4cwhichprcj'ect above vthe surface 5 ofthe plate'l and are jof such' dimensions as to forni slots 'o rfgrooves 557:'k Y v15 therebetweenof `the desiredwi'dthf and" spacing for the needle arrangement selected. As shown in the'drawing, thre'e'paral'lel' slots. ll are formed in each group and the walls or blocks 14a, llb and 140 inserted intheseslots correspond inwidth thereto. The Wallsfor blocks offeach group are angularlydispose'd with respect to the Walls or'blocks ofa'dja# As shown in Fig. 1,' thefinterinediatewall or block 4MJ) `'of each group" is zthe thickest and is ofthe proper thickness tc give the' del sired spacing between;thenedl'esf- The last kbloclrllcv ofthe group is vvof greater thickness than the.l leading block 14a ofthe group",v 7,0. although neither block'is of the full Width of the needle spacing, as the blcklc isi/sub! n jected tothe lateral pressureof thev needle in" the adjacent slot resulting from the"actionofV be made lighter :or thinnerl 'VV'al-llY 146' is alsol subjected to the pressureofthe needle but Y when'made of proper thickness for the needle spacing it is sufficiently'strong to"with'sta`nd 89 the needle pressure.V Making theendsl'ots llfo'f each group` narrower'r'tli'an' the interi mediate slot permit iof retaining in the limited space available between end slots of adjacent groups a portion of Athe dialE bodyl which extends to vthe inner edgeof'theupper surface 5 separating the inner ends ofthe -slots land which-is of'su'fHient 'thickness'to resist `being laid overorbroken oiilbythej cuttingtool in the ycutting-oflthe'slts. This Y portionfof the dial .body isV also of Ysuilicient" strength to provide adequate support'fforth adjacent wall' 140 againstithe pressure ofthe needle. Withthe slots eXtendin gft`- the-in ner edge' ofthe surface'and :ofu'nifrin width throughout, it' is possible to have each 4wall ofuniform vvidthffor` its ffull length -and offsuflicient strength to'y Withst'andtfthe' usual needle pressure 'withoutf having their nnerendsabutting or. cut'iawayf to avoid 1GO 'f What is claimed is':- Y'

interference due to their convergence. rlhe surface 5 may be hardened and ground true after the slots 11 for the Walls are cut therein and the Walls lea, 11i?) and lllc may be hardened and ground before insertion in the slots 11. ln this Way a needle slot having a hardened 'and true Wearing surface is provided for the needle. Continuations 15a of the slotsv 1,5 are formed inthe annular rib 3 so as to permit the passage of the'needles and form a guide for the ends thereof.

1. A dial having groups of spaced parallel slots therein and Walls inserted in said slots having-,the opposing faces of adjacentv Walls parallel,

' 2. vAdial'having groups of inserted Walls,

the fwallsof each group being parallel and angularly disposed 'with respect to the Walls of adjacent groups.

' 3. A needle dial having groups of inserted Walls, the Walls of each group forming parallel needle'grooves .a-ngularlv disposed with v respect to the grooves lof'adjacent groups'.

, 4. vA needle dial having groups of inserted parallel Walls, vthe ,Walls of each group having' parallel opposed faces formingneedle grooves.

5. A dial having-groups of insertedV parallel Walls of different thickness, the Walls* of each group having parallel opposed faces forming needle grooves.

`6. A -dial forv knitting machines having groups of. inserted parallel Walls off-difierentth'ickness, the Walls of each group having parallel `opposed faces forming needle grooves. angularly disposed with respect to the needle grooves of adjacent groups.

7. A dial having groups of inserted parallel Walls of different thickness having parallel opposedfaces forming needle grooves, the Walls of adjacent groups being angularly disposed. r

8. A dial for knittingmachines having groups of parallel slots therein. the slots of adjacentv groups. being angularly disposed and Walls-inserted in said slots, the Walls in'each group of slots having parallel opposed faces forming needle grooves angularly disposed tothe. needle grooves of adjacent groups. Y

9. A dial having groups ofl spaced parallel. slots the slots of each group being parallel tofthe radius through the centercof said group and Walls of different vvthicknesses mounted in said slots. the Walls in each lgroup of slot-s having parallel opposed faces forming needle grooves. c Y

10. A dial having groups of'spaced parallel slots with the slots of each group parallel to the radius through the center of said group and 'Walls of differentv thicknesses adjacent groupsbeing angularly disposed, rectangular 'Walls of different thicknesses mounted in said slots With the Walls in each group vof slots vparallel and angularly disgroupsofspaced parallel slots, the slots of Y posed to the Walls injadjacent groups of slots and the Walls'in each group'` of Vslots forming spaced parallel grooves angularly disposed to the grooves formed by the Walls in adj acentv groups' of slots.:

wv13. A dial having groups of inserted parallel Walls of different thickness, the V'Walls of each group having parallel opposed faces forming groovesfor a plurality of needles,

the leading Wall being thinner than the Wall forming the opposed face.

14. A dial for knitting machines having groups of inserted parallel Walls of different thickness, the Walls of each group having 'ff parallel opposed faces forming groovesfor a plurality of needles, 'the leading and-last Walls of the group being oflesser thickness than an intermediate Wall. Y

15. A dial having groups ofv insertedl parallel Walls of dilferent thickness, the walls of each group having parallel opposed faces forming grooves for va plurality of needles, the leading Wall being the thinnest of the group and the last Wall being thinner than an intermediate vWall.

ln testimony whereof' I have signed my name to this specification.

- HARRY SWINGLEHURST.

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